Graphic sign rail



FIG. 1 is a general perspective view of the graphic sign rail embodying the present invention;

FIG. 2 is a front elevation of the graphic sign rail shown in FIG. 1;

FIG. 3 is a top plan view of the graphic sign rail shown in FIG. 1, with the bottom of the unit presenting an identical view; and,

FIG. 4 is a left side elevation of the graphic sign rail shown in FIG. 1, with the right side presenting an identical view.

The back of the display unit forms no part of the claimed design. 

The ornamental design for a graphic sign rail, as shown and described. 